Building-block for concrete construction.



No. 858,933. PATENTED JULY 2, 1907.

E. J. WHITE. BUILDING BLOCK FOR CONCRETE CONSTRUCTION.

APPLIOATION FILED JAN. 9, 1907.

4 INVENTOH Edward Zfiz''a ATTORNEYS lar characters of refere'nceindicate UNITED STATES "PAT NT OFFICE.

EDWARD JQ WHITEJ F-NEW YORK, N. Y.

BUILDING-BLOCK FOR CONCRETE CONSTRUCTION.

Specification of Letters Patent.

Patented'July 2, 1907.

Application filed an ary 9, 1907. Serial No. 351,458,

To .ali iohom it may concern; I

Be it known that; I, Enwann J. WHITE, a citizen of 'the"Un.ited Sta.tes,and a resident of the city'of New York, borough of nhattan, county and State of New York, have invented a new and Improved Building Block for Concrete Construction, of which the follow ing is a full, clear, and exact description.

This "invention has reference to improvements in building blocks, relating more especially to such blocks as a're used in connection with concrete walls and otherconcrete constructions. The blocks when used in the construction of ,a. concrete wall, are arranged to -f0rm the outer'face thereof and 'take the place of the usual false-work provided at this side of the structureduring the period of coiistruction. The blocks are. providedwith' means for temporaril-y tying them to the false-work forming the inner face of a wall, acting to hold the blocks in place until the concrete has been.

deposited and had sufficient time to .set.

Reference is to be'had to the accompanying draw.- ings forming a partofthis specification, in which simicorresponding parts in all the figures.

- Figure 1 is apersp'ective view of a concrete wall in v the course of construction, in which my improved "building block is employed Fig. 2 is a vertical section through such a wall with the false-work forming the inner face thereof in position and in section; Fig. .3 is

a plan view of a wall in which my improved building block' is employed, and Fig. 4 is a perspective, view of a bar which I employ in tying the blocks to the false- Referring more particularly to.Fig., l in a number of my. improved building blocks are set in po- 'sition preparatory to forming a ooncretewall, 1 and 2 indicate two slabs, preferably of equal extent, spaced apart and; joined together by a tr'ansverse portion 3 arranged near each end,-said portions being formed integral with the slabs and joining them rigidly together.

At each end of the slab 2, which is the inner face of the building block, a dove-tail opening 4 on the longitudinal center of the block,'--as shown. .Each opening registers withthe corresponding opening in the adjacent block when'the blockslire placed endto end, as illustrated in- Fig. 1. *The-double' jdove-tail opening thus formed admits of a sufiicient quantity of the concrete formingthe wall, to pass'between the slabs 1. and 2 and thus securely and permanently key the blocks -in position.

The slab 2 is constructed with 2. lug 5, preferably ceng trally aminged, and having a. vertical slot for'the reemploy, as shown in Fig. 4, consists of a bar 7 caption of suitable tying means to temporarily secure.

the blocks in position until the concrete is deposited hetween'them and the false-work 6 forming the inner face of the wall. The tying means which I preferably designed to be seatedon the edges of the or the llke.

the ends 8 and 9 bent in opposite directions at substantially right angles to the body portion thereof.

In the construction of a wall with my improved block, each block or as many as are necessary, after being set in position, is temporarilysecured bypassing opposite end 9' ofthe bar, which is provided with an aperture 10, being secured to the false-work 6 by passing bolts 11 therethrough and through the aperture, as

when set, keys the blocks together, forming astrong,

rigid construction. The false-work 6 can thereafter be removed by unscrewing the nuts from the bolts 11, leavthe end 8 of the bar 7 through the slot of the lug- 5, the

ing no projections on the inner face of the wall after the bolts are sawed off or otherwise displaced. As the construction of the wall proceeds, vertical furring stripsl2 'should also be set in position, as illustrated in 3, for securing thefra'mes of windows orthe like and thus adapt the wall for securing the woodworkwhen the false-work 6 is removed without additional labor. The .furring-strips which I preferably use,.-as

shown, are beveled on both edges, which securely keys them in the finished wall.

Although I have described the preferred embodiment of the invention in detail in order thatthe'c on-f struction and operation might be fully understood, it

consider that I am entitled to such modifications as fall within the scope of the-annexed claims.

Having thus described my invention I claim as new and desire to secure by- Letters Patent: v

1. A-bulldl-ng block composed of two slabs spaced apart and connectedtogether through the intermediary of transverse portions arranged near each end,

slabs in the construct'lon'of a wall or the hand having a dove-tall opening passing through the face of one of said slabs.

' '2. A bulldlng block composed of two slabs spacedapart and rlgldly connected together, said .block being designed,

to be seated on the edges 0!. the slabs in the construction 'of a wall or the'llke, and having a dove-tallopenlng passthe face or one ,ot sald slabs at each end r lng through thereof.

3; A bulldlhg block composed of two slabs spaced apart; and rlgldly' connected together with dovetail openings in the opposite ends'of one oi. said slabs, and a slotted. lug

on the lnner face ol. the same slab for temporarily holdin; the block in said block being- -is evident that various changes, may be made; and I placedurlngthe constructlon ot a will 4. A bulldlng block composed of two-slabs spaced apart I and connected-together with an intermediate transverse portion leaving the space between the ends of the slate endsxthereofcommunicating with said spaces.

formed ln-the face 0! b); e ,6f gald slabs at he opposlte,

5. In .al building construction, a will havlhg th-ohtr face; thereqf 'cdhstrueted of hulldlmg blocks, said blqck'sh'avlng slott 'lugs on their limer faces, a concrete back- 'lng vkeyed-to said blocks and forming the lime! face'ot the wall, 'andv laterally disposed ke yselldably engaged with the'slot's of said lugs and embed dedln said b acklngb 6. In a building construction, a wall 'havlng the OUl CBlfl face thereof cq'nstructed" of building-blocks, a concrete 'backln'g' keyed to said-blocks and formlng the Inner facej I of the wall, a f urrlng strlpembddeddn the backing, andme uns conn ectlng sald str-I with certhi of said blocks.

7.9111 h'hlflMing cohatluctlon, a wall having the outer 5m theneol; constructeq'pf hlilldln'g blocks suitl blocks keyed to said blpglis-to -mlngi the lunar fece of the wall, and'blirs'hnylng their ehds'hen; at a'n nglwwllh o e end of the barabelng ngaged wm; the slots of the high and -the opposite ends-embedded lh'sald haehlng.

ln ,testlmony whereof I haveslgued my name te thl u sp clflcatldn In the presence of tw0 subsc'rlblng witnesses. 

